JPH0438209B2 - - Google Patents
Info
- Publication number
- JPH0438209B2 JPH0438209B2 JP62209705A JP20970587A JPH0438209B2 JP H0438209 B2 JPH0438209 B2 JP H0438209B2 JP 62209705 A JP62209705 A JP 62209705A JP 20970587 A JP20970587 A JP 20970587A JP H0438209 B2 JPH0438209 B2 JP H0438209B2
- Authority
- JP
- Japan
- Prior art keywords
- hose
- synthetic resin
- molded
- rubber hose
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 30
- 239000000057 synthetic resin Substances 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 239000011247 coating layer Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 description 40
- 239000002184 metal Substances 0.000 description 11
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000004073 vulcanization Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000010107 reaction injection moulding Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ゴムホース等、成形ホースの製造方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing molded hoses such as rubber hoses.
［従来の技術］
成形されたホース、特に成形ゴムホースは自動
車を始めとして各種機器の配管等に広く用いられ
ているが、配管に適応するよう曲げ加工する場合
は、一般に加硫工程に入る前に定められた長さの
ゴムホースに所定の形に湾曲された芯金を押入れ
て形を整え、その状態で加硫してから芯金を抜き
取つて成形する方法が用いられている。[Prior Art] Molded hoses, especially molded rubber hoses, are widely used for piping of various equipment including automobiles, but when bending them to fit the piping, it is generally necessary to bend the hoses before entering the vulcanization process. A method is used in which a core metal curved into a predetermined shape is pushed into a rubber hose of a predetermined length, the shape is adjusted, vulcanization is performed in that state, and the core metal is removed and molded.
この種方法に関しては例えば特開昭61−188113
号公報に開示されているように芯金を形状記憶合
金を用いる方法や特開昭62−19414号公報に開示
されている方法等、各種のものが知られている。 Regarding this type of method, for example, Japanese Patent Application Laid-Open No. 61-188113
Various methods are known, such as a method using a shape memory alloy as a core metal as disclosed in Japanese Patent Application Laid-open No. 19414/1983.
［発明が解決しようとする問題点］
上述したように、ゴムホースを曲げ成形する場
合は、ゴムホース内に芯金を押入れて加硫し、加
硫後芯金を抜取つて成形するのであるが、この場
合ゴムホースの形状が単純ならば、即ち芯金の形
状が単純であれば、芯金とゴムホースとの着脱は
比較的容易に行うことができるが、ゴムホースの
形状が複雑となり、従つて芯金にも複雑な形状が
要求されるようになると、ゴムホースに芯金を装
着したり或いは取外すことが非常に困難となる。
この場合、加硫前のゴムホースは変形し易いから
芯金の装着が可能であるとしても、加硫後の固化
状態では芯金を取外すことは不可能となる。この
傾向はホースの編組補強層が多層となり曲げ剛性
が高くなるほど困難となり、製造コストを増大さ
せることになる。[Problems to be Solved by the Invention] As mentioned above, when bending and forming a rubber hose, a core metal is pushed into the rubber hose and vulcanized, and after vulcanization, the core metal is removed and molded. In this case, if the shape of the rubber hose is simple, that is, if the shape of the core metal is simple, it is relatively easy to attach and detach the core metal and the rubber hose, but the shape of the rubber hose becomes complicated, and therefore the core metal However, if a complicated shape is required, it becomes extremely difficult to attach or remove the core bar from the rubber hose.
In this case, since the rubber hose before vulcanization is easily deformed, even if it is possible to attach the core metal, it is impossible to remove the core metal in the solidified state after vulcanization. This tendency becomes more difficult as the braided reinforcing layer of the hose becomes more multi-layered and the bending rigidity increases, leading to an increase in manufacturing costs.
本発明の目的は、形状が複雑な場合でも成形作
業を容易にして製造コストを大幅に低減する成形
ホースの製造方法を提供することにある。 An object of the present invention is to provide a method for manufacturing a molded hose that facilitates the molding operation even when the shape is complex and significantly reduces manufacturing costs.
［問題点を解決するための手段］
本発明は、ホースを所望の形状に成形させる成
形ホースの製造方法において、所定の形状を備え
上下対称に分割された二つの金型の間にホースを
装着して所定の形状に整形させ、前記金型を上下
より合致させて密閉した後この金型の突合せ部よ
り合成樹脂を注入して前記金型と前記ホースとの
間隙部に流入させ、前記ホースを前記合成樹脂で
被覆した後この合成樹脂を固化させて前記ホース
を所定形状に成形することを特徴とし、複雑な形
状のホースでも容易に製造できるようにして目的
の達成を計つたものである。[Means for Solving the Problems] The present invention provides a method for manufacturing a molded hose in which a hose is molded into a desired shape, in which a hose is mounted between two molds having a predetermined shape and vertically symmetrically divided. After shaping the molds into a predetermined shape and fitting the molds from above and below and sealing them, synthetic resin is injected from the abutting portions of the molds and flows into the gap between the molds and the hose. The hose is characterized in that the synthetic resin is coated with the synthetic resin and then the synthetic resin is solidified to form the hose into a predetermined shape.The purpose of the hose is achieved by making it possible to easily manufacture even hoses with complicated shapes. .
本発明において、素材のゴムホースは未加硫ゴ
ムホースでも使用することができる。未加硫ホー
スの場合には、合成樹脂の注入、固化工程で加硫
することができる。 In the present invention, an unvulcanized rubber hose can also be used as the raw material rubber hose. In the case of an unvulcanized hose, it can be vulcanized through a synthetic resin injection and solidification process.
［作用］
本発明の成形ホースの製造方法においては、所
定の形状を有する金型を上下対象となるように二
つに分割し、例えば真直なゴムホースをこの二つ
の金型の形状に副つて装填させ、金型を上下より
合致させて上記ゴムホースを密封し、この状態で
金型の合せ目より合成樹脂を注入して金型とゴム
ホースとの間隙部に流し込み、ゴムホースを樹脂
で被覆するようにした後合成樹脂を固化させて金
型を取除き、その後ゴムホースを取出すようにし
ているので、ゴムホースは合成樹脂で整形、固定
されて所定の形状に整形されることになり、形状
が複雑な場合でも容易に製造することが可能とな
る。[Function] In the method for manufacturing a molded hose of the present invention, a mold having a predetermined shape is divided into two vertically symmetrically, and a straight rubber hose, for example, is loaded along the shape of the two molds. Then, the molds are matched from above and below and the rubber hose is sealed, and in this state, synthetic resin is injected from the joint of the molds and poured into the gap between the mold and the rubber hose, so that the rubber hose is covered with the resin. After that, the synthetic resin is solidified and the mold is removed, and then the rubber hose is taken out. Therefore, the rubber hose is shaped and fixed with the synthetic resin and shaped into the specified shape. However, it can be easily manufactured.
［実施例］
以下、本発明の一実施例について図を用いなが
ら説明する。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図〜第３図は本発明の成形ホースの製造方
法による一実施例を示すもので、夫々金型にゴム
ホースの装填した場合の平面図、上下の金型を合
致せた場合の側面図、及び完成したゴムホースの
斜視図を示す。 Figures 1 to 3 show an embodiment of the method for manufacturing a molded hose of the present invention, and show a plan view when a rubber hose is loaded into a mold, and a side view when the upper and lower molds are matched. , and a perspective view of the completed rubber hose.
各図において１，１′は金型で、下半分及び上
半分を示す。２は金型１に彫られた型部、３は型
部２の形状に副つて装填されたゴムホース、４は
金型１，１′の内部に注入する合成樹脂の注入口、
５は固化した合成樹脂被覆層、６は成形されたゴ
ムホースを示す。 In each figure, 1 and 1' are metal molds, showing the lower half and the upper half. 2 is a mold part carved into the mold 1, 3 is a rubber hose loaded according to the shape of the mold part 2, 4 is an injection port for synthetic resin to be injected into the inside of the molds 1 and 1',
5 indicates a solidified synthetic resin coating layer, and 6 indicates a molded rubber hose.
この実施例においてゴームホースを成形する場
合は、直円筒状の未加硫のゴムホースを所定の形
状に彫刻された型部２に副つて押入れ曲管状のゴ
ムホース３とし（第１図）、ついで第２図に示す
ように上下の金型１′，１を合致させてゴムホー
ス３を金型内に封入し、注入口４より合成樹脂を
注入する。 In this embodiment, when molding a Gorm hose, a right cylindrical unvulcanized rubber hose is inserted into a mold part 2 engraved into a predetermined shape to form a curved tubular rubber hose 3 (Fig. 1), and then a second rubber hose is molded. As shown in the figure, upper and lower molds 1' and 1 are aligned, a rubber hose 3 is enclosed in the molds, and synthetic resin is injected through an injection port 4.
合成樹脂を注入すると、この合成樹脂は型部２
とゴムホース３との間の間隙部に流入するからゴ
ムホース３は合成樹脂で外装されると共にその合
成樹脂の熱を受けて加硫されることになる。その
後合成樹脂を固化させ金型を取外せば第３図に示
すように合成樹脂被覆層５で外装された成形ゴム
ホース６が得られることになる。 When synthetic resin is injected, this synthetic resin will form mold part 2.
Since it flows into the gap between the rubber hose 3 and the rubber hose 3, the rubber hose 3 is covered with synthetic resin and is vulcanized by the heat of the synthetic resin. Thereafter, when the synthetic resin is solidified and the mold is removed, a molded rubber hose 6 covered with a synthetic resin coating layer 5 is obtained as shown in FIG.
この製法では合成樹脂被覆層５の厚さは必ずし
も均一とはならないが、この厚さの均一性は成形
ゴムホースの性能には影響を与えないので特に問
題とする必要はない。しかし均一な厚さが要求さ
れるような場合は、第４図に示すようにゴムホー
ス３の要部に例えばリング状の治具７を設ける等
の方法を用いて均一な厚さの被覆層を得ることが
できる。 In this manufacturing method, the thickness of the synthetic resin coating layer 5 is not necessarily uniform, but this uniformity of thickness does not affect the performance of the molded rubber hose, so there is no need to consider it a particular problem. However, if a uniform thickness is required, a method such as providing a ring-shaped jig 7 on the main part of the rubber hose 3 is used to form a coating layer with a uniform thickness, as shown in FIG. Obtainable.
第５図は本実施例の変形例を示すもので、合成
樹脂被覆層５を単にゴムホース３の整形として用
いるだけではなく、取付機能も得られるようにし
たもので、取付部８を設け、ねじ等を用いて本体
に固定するようにしたもので、各種の応用例を構
成することができる。 FIG. 5 shows a modification of this embodiment, in which the synthetic resin coating layer 5 is not only used for shaping the rubber hose 3, but also has a mounting function, and a mounting portion 8 is provided and a screw It is possible to configure various application examples by fixing it to the main body using a screw or the like.
尚、合成樹脂の材料としてはゴムホースの曲げ
剛性に応じて材質、被覆厚さ等を広範囲に選定す
ることが可能で、材質として例えばポリエチレ
ン、ポリプロピレン及びナイロン等の熱可塑性合
成樹脂、又は主剤と硬化剤の二液を反応させて生
成したポリウレタン等のいわゆるリアクシヨンイ
ンジエクシヨンモールデイング（RIM）、或いは
合成樹脂を短繊維等で補強したり、インフオース
トリアクシヨンインジエクシヨンモールデイング
（Ｒ−RIM）等、各種のものを用いて優れた効果
を得ることができる。 In addition, the material of the synthetic resin can be selected from a wide range of materials, coating thickness, etc. depending on the bending rigidity of the rubber hose. Examples of the material include thermoplastic synthetic resins such as polyethylene, polypropylene, and nylon, or resins that are cured with the main resin. So-called Reaction Injection Molding (RIM), such as polyurethane produced by reacting two liquid agents, or Reaction Injection Molding (R-RIM), which is made by reinforcing synthetic resin with short fibers, etc. ), etc., can be used to obtain excellent effects.
以上、本実施例を用いることによりゴムホース
の成形作業が極めて容易となり、従来の方法では
成形困難とみられていた複雑な形状のゴムホース
でも成形が可能となるので製造コストを大幅に低
減することができる。 As described above, by using this embodiment, the process of molding a rubber hose becomes extremely easy, and even complex-shaped rubber hoses that were considered difficult to mold using conventional methods can be molded, thereby significantly reducing manufacturing costs. .
［発明の効果］
本発明によれば、形状が複雑な場合でも成形作
業を容易にして製造コストを大幅に低減する成形
ホースの製造方法を提供することができる。[Effects of the Invention] According to the present invention, it is possible to provide a method for manufacturing a molded hose that facilitates the molding operation and significantly reduces manufacturing costs even when the shape is complex.
第１図は本発明の成形ホースの製造方法による
一実施例を示す金型にゴムホースを装填した場合
の平面図、第２図は合成樹脂注入時の金型側面
図、第３図は完成後の成形ゴムホースの斜視図、
第４図は本発明方法の応用例を示す斜視図、第５
図は第３図の変形例を示す斜視図である。
１，１′：金型、３：ゴムホース、４：合成樹
脂注入口、５：合成樹脂被覆層、６：成形ゴムホ
ース、７：リング状治具、８：取付部。
Figure 1 is a plan view of a rubber hose loaded into a mold showing one embodiment of the molded hose manufacturing method of the present invention, Figure 2 is a side view of the mold during injection of synthetic resin, and Figure 3 is after completion. Perspective view of molded rubber hose,
FIG. 4 is a perspective view showing an application example of the method of the present invention, and FIG.
This figure is a perspective view showing a modification of FIG. 3. 1, 1': Mold, 3: Rubber hose, 4: Synthetic resin injection port, 5: Synthetic resin coating layer, 6: Molded rubber hose, 7: Ring-shaped jig, 8: Mounting part.
Claims (1)
の製造方法において、所定の形状を備え上下対称
に分割された二つの金型の間にホースを装填して
所定の形状に整形させ、前記金型を上下より合致
させて密閉した後該金型の突合せ部より合成樹脂
を注入して前記金型と前記ホースとの間隙部に流
入させ、前記ホースを前記合成樹脂で被覆した後
該合成樹脂を固化させて前記ホースを所定形状に
成形することを特徴とする成形ホースの製造方
法。 ２ 前記ホースを前記金型に装填する際、該ホー
スの複数個所にリング状治具を挿入して前記合成
樹脂の被覆厚さを一定するものである特許請求の
範囲第１項記載の成形ホースの製造方法。 ３ 前記金型は前記合成樹脂の被覆層に取付穴を
有する取付部を形成するものである特許請求の範
囲第１項記載の成形ホースの製造方法。[Claims] 1. A method for manufacturing a molded hose in which a hose is molded into a desired shape, in which a hose is loaded between two molds having a predetermined shape and vertically symmetrically divided, and then shaped into a predetermined shape. After the molds were matched from above and below and sealed, a synthetic resin was injected from the butt part of the mold and flowed into the gap between the mold and the hose, and the hose was coated with the synthetic resin. A method for manufacturing a molded hose, comprising: then solidifying the synthetic resin and molding the hose into a predetermined shape. 2. The molded hose according to claim 1, wherein when loading the hose into the mold, ring-shaped jigs are inserted into the hose at a plurality of locations to keep the coating thickness of the synthetic resin constant. manufacturing method. 3. The method of manufacturing a molded hose according to claim 1, wherein the mold forms a mounting portion having a mounting hole in the synthetic resin coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62209705A JPS6451914A (en) | 1987-08-24 | 1987-08-24 | Manufacture of molded hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62209705A JPS6451914A (en) | 1987-08-24 | 1987-08-24 | Manufacture of molded hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6451914A JPS6451914A (en) | 1989-02-28 |
| JPH0438209B2 true JPH0438209B2 (en) | 1992-06-23 |
Family
ID=16577272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62209705A Granted JPS6451914A (en) | 1987-08-24 | 1987-08-24 | Manufacture of molded hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6451914A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2527220Y2 (en) * | 1990-10-30 | 1997-02-26 | 矢崎総業株式会社 | Rat-proof hose |
| US7279018B2 (en) | 2002-09-06 | 2007-10-09 | Fortum Oyj | Fuel composition for a diesel engine |
-
1987
- 1987-08-24 JP JP62209705A patent/JPS6451914A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6451914A (en) | 1989-02-28 |
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